Alarm system control unit



FIG. 1 is a front, top and left side perspective view of a cabinet for a combined receiver and alarm control unit showing my new design;

FIG. 2 is a top plan view thereof.

FIG. 3 is a bottom plan view thereof.

FIG. 4 is a front elevational view thereof.

FIG. 5 is a right side elevational view.

FIG. 6 is a rear elevational view thereof. 

The ornamental design for an alarm system control unit, substantially as shown. 